Smart Thinking Can Reduce Risk in Property Development

Property development can make you rich. But it is inherently risky. There’s no way of de-risking property development completely. Just like most wealth-generating enterprises, it’s a strict risk-versus-reward model. And one of its biggest challenges is that the barriers to entry are minimal – anyone can develop property by buying a property or some land and then hiring various professionals such as architects and builders to get to work. So, if you’ve ever fancied trying your hand at a spot of property development, before you set off on that path, let me share a few tips that should help you avoid some of the bigger boulders that lie ahead. 

Planning risks

Try building anything without planning permission and you risk having to knock it down, or being fined; in some cases imprisonment could also be on the cards. Obtaining permission isn’t optional. But you can reduce how much of it you have to deal with.

The Government has given us a tool for the job called Permitted Development Rights (PDRs). These rights allow us to change a wide variety of commercial buildings into residential use without having to apply for full planning permission. In most cases, we’ll still need council approval, however with PDR’s there is a short and prescriptive list of things they can object to. So, you know what boxes you need to tick beforehand, plus the council must determine the application within eight weeks, otherwise it automatically gets approved. You’ll still need full planning permission if you’re changing the elevations of the building, but that shouldn’t be contentious – the change of use is the important one, and with PDRs, the council’s hands are effectively tied. 

Not all PDRs are created equal; my favourites are classes G and MA which allow us to convert most commercial property types (offices, shops, light industrial, etc.) into residential. Why do PDRs exist? The government has realised we have around four years’ worth of new homes that could be built on redundant brownfield sites. And given that most voters won’t object to developers turning unused commercial buildings into much-needed housing, they’ve been quick to encourage it. So, if you’re looking to de-risk your first project, I would strongly advise you to go down the Permitted Development route as it’s likely to be quicker and more certain.

What if you bought a property that already has planning permission granted – won’t you avoid the planning risk? The problem with this approach is that the planning uplift has already been built into the asking price, meaning there’s less profit for you. As a result, the successful bidder will be the person who will either build it the cheapest, make the least profit, or make a loss because they’ve got their numbers wrong. None of these options should appeal to you. Even if you think you could improve on the existing plans, you’re still back to square one – having to submit a new planning application that may or may not get approved. So, I would avoid these schemes, no matter how appealing the artist’s impression looks in the agent’s particulars.

Optimism risks

You may tell yourself that you’re far too old and wise to fall into the trap of making optimistic assumptions, but the problem is you won’t necessarily notice that you’ve done it. There’s no reward in finding unprofitable deals, so we’re predisposed to hope that every deal we look at will be profitable. There are a lot of variables that determine whether a deal works financially, and you need to make a lot of assumptions, certainly at the outset. If you dial every cost assumption to the minimum, your numbers will project a hefty profit. Dial costs to the maximum, and you’ll show a loss. The trick, then, is to be as pragmatic as possible. Don’t fall into the trap of being just a tad optimistic here and there, as it can really trip you up. 

Also, ensure you can’t see your overall profit percentage figure when you input your assumptions. If you can, then as you see your profit percentage figure reduce, there’s a high risk that your subconscious will make your assumptions less prudent – it’s human nature. The solution is to input every assumption reasonably and only enter your target sale values (GDVs) afterwards. That way, you’ll only see your profit percentage AFTER inputting your cost assumptions. 

Margin risks 

My next piece of de-risking advice is always to target a 20% profit margin based on GDV (gross development value, i.e., your selling prices). So, if your units are expected to sell for a total of £500k, you want to target a £100k profit at the outset. You should also include a contingency budget of 10–15% of the construction costs. This lies at the heart of development risk management. You won’t be able to predict the additional costs that will crop up as your project progresses, so you need to build in enough fat to ride out a few storms. And there will be bumps in the road; the trick is to ensure you’re still left with a decent profit once you’ve crossed the finish line.

Also, don’t be tempted to target a fixed profit figure rather than a percentage. For example, you might think that targeting a £200k profit sounds pretty good. But if the GDV were £5m, you’d only make a 4% profit margin. It doesn’t take too many unexpected costs to wipe out 4%, so make sure that you stick to 20%, not simply a fixed amount of money you’d like to make. While we’re talking about numbers, make sure you’ve firmed up as many of your pricing assumptions as possible before you commit. You won’t be able to fix them completely, but a common mistake is leaving too many figures as “reasonable assumptions”, then getting lazy and assuming that your initial assumptions will be about right. Instead, firm up as many of your numbers as possible before you commit, and you’ll reduce the risk of expensive surprises later.

On-site risks

Problem often occur when people fail to specify what they want precisely enough. Say you’ve specified ’a dozen internal doors’ in the tender and imagined those rather nice oak ones with brushed aluminium handles. And then, when your contractor installs cheap-as-chips plywood doors, you’re up in arms. No problem, says your contractor; they’re happy to change them, but it’ll cost you a few grand more. The lesson? If you don’t specify what you want precisely enough, your contractor will likely install the cheapest available, so be very specific.

Exit risks

My final piece of de-risking advice is to have more than one exit for your project at the outset. You may want to sell your finished units, but what if the market has tanked when you come to sell? The logical thing to do could be to refinance the project onto a buy-to-let mortgage and then let the units out until the market rebounds. On the other hand, if you were planning to rent out the units but the rental market bombed, then your plan B could be to sell. Either way, ensure you’ve worked out a Plan B at the start and that you know the numbers involved.


While property development has many risks, it is possible to reduce most of them if you have the right education to learn where they are and the right mindset to have risk mitigation as a primary focus. 

Ritchie Clapson CEng is an established developer, author, industry commentator, and co-founder of the leading property development training company propertyCEO.